import { describe, it, expect, afterEach } from 'vitest';
import { cleanup, render } from 'vitest-browser-svelte';

import ConversationThumbnail from './ConversationThumbnail.svelte';

afterEach(() => {
	cleanup();
});

describe('ConversationThumbnail', () => {
	it('renders the thumbnail image with a cache-busting v= query param', () => {
		render(ConversationThumbnail, {
			doc: {
				id: '1111',
				thumbnailKey: 'thumbnails/1111.jpg',
				thumbnailGeneratedAt: '2026-04-10T09:00:00Z',
				thumbnailAspect: 'PORTRAIT',
				pageCount: 1
			}
		});

		const img = document.querySelector('img') as HTMLImageElement | null;
		expect(img).not.toBeNull();
		expect(img!.getAttribute('src')).toContain('/api/documents/1111/thumbnail');
		expect(img!.getAttribute('src')).toContain('v=');
	});

	it('uses portrait dimensions when aspect is PORTRAIT', () => {
		render(ConversationThumbnail, {
			doc: {
				id: 'p1',
				thumbnailKey: 'thumbnails/p1.jpg',
				thumbnailAspect: 'PORTRAIT',
				pageCount: 1
			}
		});

		const tile = document.querySelector('[data-testid="conv-thumb-tile"]') as HTMLElement;
		expect(tile.getAttribute('data-aspect')).toBe('PORTRAIT');
	});

	it('uses landscape dimensions when aspect is LANDSCAPE', () => {
		render(ConversationThumbnail, {
			doc: {
				id: 'l1',
				thumbnailKey: 'thumbnails/l1.jpg',
				thumbnailAspect: 'LANDSCAPE',
				pageCount: 1
			}
		});

		const tile = document.querySelector('[data-testid="conv-thumb-tile"]') as HTMLElement;
		expect(tile.getAttribute('data-aspect')).toBe('LANDSCAPE');
	});

	it('falls back to PORTRAIT when thumbnailAspect is missing', () => {
		render(ConversationThumbnail, {
			doc: {
				id: 'n1',
				thumbnailKey: 'thumbnails/n1.jpg'
			}
		});

		const tile = document.querySelector('[data-testid="conv-thumb-tile"]') as HTMLElement;
		expect(tile.getAttribute('data-aspect')).toBe('PORTRAIT');
	});

	it('renders the page badge when pageCount is greater than 1', () => {
		render(ConversationThumbnail, {
			doc: {
				id: 'm1',
				thumbnailKey: 'thumbnails/m1.jpg',
				thumbnailAspect: 'PORTRAIT',
				pageCount: 4
			}
		});

		const badge = document.querySelector('[data-testid="conv-thumb-page-badge"]') as HTMLElement;
		expect(badge).not.toBeNull();
		expect(badge.textContent).toContain('4');
		// Senior-readable size: text-sm (14px) rather than text-xs (12px) on a
		// small tile avoids marginal legibility on a 320px phone.
		expect(badge.className).toContain('text-sm');
	});

	it('hides the page badge when pageCount is 1 or missing', () => {
		render(ConversationThumbnail, {
			doc: {
				id: 's1',
				thumbnailKey: 'thumbnails/s1.jpg',
				thumbnailAspect: 'PORTRAIT',
				pageCount: 1
			}
		});

		const badge = document.querySelector('[data-testid="conv-thumb-page-badge"]');
		expect(badge).toBeNull();
	});

	it('renders a skeleton placeholder when no thumbnailKey is set yet', () => {
		render(ConversationThumbnail, {
			doc: {
				id: 'blank',
				thumbnailAspect: 'PORTRAIT'
			}
		});

		expect(document.querySelector('img')).toBeNull();
		const skeleton = document.querySelector('[data-testid="conv-thumb-skeleton"]');
		expect(skeleton).not.toBeNull();
		expect(skeleton!.className).toContain('motion-safe:animate-pulse');
	});
});